Temporary removable solvent based protective coating

a solvent-based, temporary coating technology, applied in temporary coatings, coatings, packaging, etc., can solve the problems of painting and unpainted surfaces on automobiles, off-road equipment, marine, military and aeronautical crafts, and damage to the painted surface to which the coating is applied, and achieves good resistance to environmental factors, easy removal, and good protection against wear and scratching

Inactive Publication Date: 2016-03-22
OCONEE COATING TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a temporary coating that can be easily removed without harming the underlying substrate. The coating is designed to protect surfaces from wear and scratching, and to withstand environmental factors and detergents. It can be used as a protective temporary removable coating for the front of motor vehicles to act as a protectant against flying debris and road chips during normal use. The temporary coating can be pigmented or colored to match the existing color and gloss of the painted finish.

Problems solved by technology

Painted and unpainted surfaces on automobiles, trucks, buses, vans, off-road equipment, construction equipment and other moving vehicles such as marine, military and aeronautical crafts are subject to damage from acid rain, flying road debris, insects, bird droppings, tree rosin, tar, asphalt, UV light, dirt, pollution and many other environmental and mechanical influences.
Consequently, these strong solvents damage the painted surface to which the coatings are applied.
Silicone protectants do not protect painted finishes against damage from flying road debris, insects, bird droppings, tree rosin, tar, asphalt and many other environmental and mechanical influences.
Peelable coatings have been evaluated in the market place but are not popular as they cannot be easily removed from painted surfaces after having been left on surfaces exposed to the environment for some time.
Peelable coatings are also expensive to install.
The wax based coatings are very limited in their applications as they tend to accumulate dust and dirt, and are aesthetically not appealing.
Temporary coatings on the market today are not easily removable without harming the underlying substrate, and do not have the necessary durability and adhesion properties to remain intact for even a short time.
However, such commercial paint strippers will damage the painted finishes to which the temporary coating is applied.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0084]Preparing a mixture of the solvents in accordance with Table I:

[0085]Four formulations are shown as an example. The two formulations M2 and M3 for the solvent mixtures were used in preparing the coatings, and have slightly different proportions of the components, as these were required to achieve the optimum solubilities for the different resins used to prepare the various coatings. Formulation M3 is environmentally friendly as it contains no HAPS, the ingredients are exempt solvents and are all biodegradable.

[0086]These blends produce mixtures that may also be used as diluent reducers for thinning down the final coating to make it suitable for spraying applications. The theoretical evaporation rate for Reducer M0 is lowest and Reducer M3 is fastest. These are all with reference to an arbitrary standard evaporation rate for n-butyl acetate equal to one. It is necessary in colder conditions to have a slightly faster evaporation rate, whereas in warmer conditions a slower evapor...

example 2

[0089]Preparing the Top Coating #M16 in accordance with Table II:

[0090]100 lb. of the coating was prepared. Seventy-nine and 87 / 100 lb. of solvents mixture M2 (79.87%) was added to the mixing vessel. While mixing slowly, 11 and 96 / 100 lb. (11.96%) of CAB 553-0.4 Cellulose Acetate Butyrate powder from Eastman Chemical was gradually added into the liquid. The liquid was mixed for 30 minutes to ensure no big lumps of the agglomerated polymer remain in the liquid. Three and 99 / 100 lb. (3.99%) of acrylic B734 from DSM-NeoResins were gradually added to the liquid while mixing. Two and 66 / 100 lb. (2.66%) of acrylic BR106 from Dianal America were gradually added to the liquid while mixing. One and 33 / 100 lb. (1.33%) of SAIB 100 Sucrose Acetate Isobutyrate from Eastman Chemicals were gradually added to the liquid while mixing. Zero and 7 / 100 lb. (0.07%) of Tinuvin 292 UV light stabilizer; zero and 7 / 100 lb. (0.07%) of Tinuvin 1130 UV absorber were slowly added and mixing continued to ensure ...

example 3

[0092]Preparing the Top Coating #M16A in accordance with Table III:

[0093]100 lb. of the coating was prepared. Seventy-five and 84 / 100 lb. of solvents mixture M3 (75.84%) was added to the mixing vessel. While mixing slowly, sixteen and 41 / 100 lb. (16.41%) of CAB 553-0.4 Cellulose Acetate Butyrate powder from Eastman Chemical was gradually added into the liquid. The liquid was mixed for 30 minutes to ensure no big lumps of the agglomerated polymer remain in the liquid. Three and 79 / 100 lb. (3.79%) of acrylic B734 from DSM-NeoResins were gradually added to the liquid while mixing. Two and 53 / 100 lb. (2.53%) of acrylic BR106 from Dianal America were gradually added to the liquid while mixing. One and 20 / 100 lb. (1.20%) of SAIB 100 Sucrose Acetate Isobutyrate from Eastman Chemicals were gradually added to the liquid while mixing. Zero and 7.5 / 100 lb. (0.075%) of Tinuvin 292 UV light stabilizer; zero and 7.5 / 100 lb. (0.075%) of Tinuvin 1130 UV absorber were slowly added and mixing continu...

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Abstract

This invention is for a composition of clear or pigmented coating that is temporary and removable. It is especially designed to protect the surface of an automobile from the damaging effects of the environment and also from damage caused by normal daily use. The coating is a composition of 40 to 80% of cellulose acetate butyrate ester, 15 to 60% of an acrylic polymer and 2 to 10% of a sucrose acetate isobutyrate. The remover is a combination of tetrahydrofurfuryl alcohol, dibasic ester, diacetone alcohol, ethyl 3 ethoxypropionate; 2,2,4 trimethyl-1,3 pentanoldiol monoisobutyrate, and white mineral oil.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This is a continuation of U.S. patent application Ser. No. 11 / 842,291, filed Aug. 21, 2007, which application claims priority to U.S. Provisional Application No. 60 / 914,123, entitled “A Water Based Back Coat For Temporary Graphics Fabrication,” filed Apr. 26, 2007, and U.S. Provisional Application No. 60 / 914,133, entitled “A Solvent Based Top Coating For Temporary Graphics Fabrication,” filed Apr. 26, 2007, the disclosures of all of which applications are herein incorporated by reference in their entirety.TECHNICAL FIELD[0002]The present invention is generally related to a temporary removable solvent based protective coating and to removers for removing such coatings.[0003]This invention also provides a remover composition that is biodegradable, and a method for easily removing the temporary coating using the remover, without damage to the underlying substrate. After removal and clean up, a new temporary coating can be repeatedly re-applie...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B65B33/00C09D5/00
CPCC09D5/008
Inventor AKHTAR, PARVEZFITZWATER, JOHNGREENBERG, NORMAN J.
Owner OCONEE COATING TECH LLC
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